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Flashcards in Chemical Analysis Deck (10):
1

What is a pure substance?

A pure substance is something that only contains one compound or element throughout.

2

What tells you how pure a substance is?

The boiling and the melting points.

3

What will a pure substance boil at?

A specific temperature.

4

What are formulations?

Formulations are mixtures with exact amounts of components.

5

What industries are they used in?

They are used in the pharmaceutical industry.

6

What are the phases of chromatography?

The mobile and the stationary phase.

7

What is the mobile phase?

This is where the molecules can move.

8

What is the stationary phase?

This is where the molecules can't move.

9

What is the equation for rf values?

Rf = distance travelled by substance/ distance travelled by solvent.

10

What are the tests for 4 common gases?

Chlorine: Litmus paper test.
Oxygen: Glowing splint test.
Carbon Dioxide: Limewater test.
Hydrogen test: Squeaky pop test.